A full selection of sizes of GUSHI universal super diamond core bits used for all kinds of brick, concrete blocks, reinforced concrete, nature stone etc, with high concentration, self sharpening diamond segments.
| Item No. | Diameter(mm) | Length(mm) | Segments No. | Segment Height(mm) |
| HDCB22 | 22 | 170/350 | 2T | 10 |
| HDCB25 | 25 | 170/350 | 2T | 10 |
| HDCB28 | 28 | 170/350 | 2T | 10 |
| HDCB32 | 32 | 170/350 | 2T | 10 |
| HDCB38 | 38 | 170/350 | 3T | 10 |
| HDCB42 | 42 | 170/350 | 3T | 10 |
| HDCB48 | 48 | 170/350 | 3T | 10 |
| HDCB52 | 52 | 170/350/450 | 4T | 10 |
| HDCB58 | 58 | 170/350/450 | 4T | 10 |
| HDCB65 | 65 | 170/350/450 | 4T | 10 |
| HDCB68 | 68 | 170/350/450 | 4T | 10 |
| HDCB72 | 72 | 170/350/450 | 4T | 10 |
| HDCB78 | 78 | 170/350/450 | 4T | 10 |
| HDCB82 | 82 | 170/350/450 | 4T | 10 |
| HDCB90 | 90 | 170/350/450 | 4T | 10 |
| HDCB95 | 95 | 170/350/450 | 4T | 10 |
| HDCB102 | 102 | 170/350/450 | 5T | 10 |
| HDCB107 | 107 | 170/350/450 | 5T | 10 |
| HDCB112 | 112 | 170/350/450 | 5T | 10 |
| HDCB117 | 117 | 170/350/450 | 5T | 10 |
| HDCB127 | 127 | 170/350/450 | 6T | 10 |
